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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bond-dissociation energy ： ウィキペディア英語版 Bond-dissociation energy In chemistry, bond-dissociation energy (BDE) or D0, is one measure of the strength in a chemical bond. It is defined as the standard enthalpy change when a bond is cleaved by homolysis, with reactants and products of the homolysis reaction at 0 K (absolute zero). For instance, the bond-dissociation energy for one of the C–H bonds in ethane (C2H6) is defined by the process: CH3CH2–H → CH3CH2· + H· D0 = Δ''H'' = 101.1 kcal/mol = 423.0 kJ/mol = 4.40 eV (per bond) == Definitions of BDE and related parameters == The bond-dissociation energy is sometime also called the bond-dissociation enthalpy (or bond enthalpy), but these terms are not strictly equivalent, as they refer to the above reaction enthalpy at standard conditions, and differ from D0 by about 1.5 kcal/mol (6 kJ/mol) in the case of a bond to hydrogen in a large organic molecule. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bond-dissociation energy」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.